|
Consolidated Statements of Cash Flows (USD $)
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| Cash flows from operating activities |
|
|
| Net loss |
$ (11,834,000) |
$ (6,144,000) |
| Adjustments to reconcile net loss to net cash used in operating activities |
|
|
| Depreciation and amortization |
3,433,000 |
3,070,000 |
| Non-cash interest and other expense |
1,883,000 |
2,528,000 |
| Stock-based compensation expense |
5,305,000 |
4,360,000 |
| Provision for bad debts |
328,000 |
891,000 |
| Changes in operating assets and liabilities: |
|
|
| Accounts receivable |
3,461,000 |
(4,503,000) |
| Inventories |
(6,966,000) |
(985,000) |
| Deferred revenue |
313,000 |
(288,000) |
| Prepaid expenses and other assets |
384,000 |
(904,000) |
| Accounts payable, accrued expenses and other current liabilities |
(59,000) |
917,000 |
| Other long-term liabilities |
264,000 |
41,000 |
| Net cash used in operating activities |
(3,488,000) |
(1,017,000) |
| Cash flows from investing activities |
|
|
| Purchases of property and equipment |
(4,346,000) |
(2,157,000) |
| Net cash used in investing activities |
(4,346,000) |
(2,157,000) |
| Cash flows from financing activities |
|
|
| Principal payments of capital lease obligations |
(1,193,000) |
(618,000) |
| Proceeds from issuance of common stock |
4,876,000 |
3,561,000 |
| Payment of withholding taxes in connection with vesting of restricted stock units |
(1,434,000) |
(3,882,000) |
| Net cash provided by (used in) financing activities |
2,249,000 |
(939,000) |
| Net decrease in cash and cash equivalents |
(5,585,000) |
(4,113,000) |
| Cash and cash equivalents, beginning of period |
151,193,000 |
149,727,000 |
| Cash and cash equivalents, end of period |
145,608,000 |
145,614,000 |
| Non-cash investing and financing activities |
|
|
| Purchases of property and equipment under capital lease |
5,721,000 |
0 |
| 3.75% Convertible Notes |
|
|
| Adjustments to reconcile net loss to net cash used in operating activities |
|
|
| Non-cash interest and other expense |
$ 0 |
$ 2,800,000 |